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<div class="title">proto_maom.c</div>  </div>
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<a href="proto__maom_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*********************************************</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">proto_maom.c &lt;------ proto_maom.c</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">implements massey omura cryptosystem based</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">communication.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *********************************************/</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="proto__maom_8h.html">proto_maom.h</a>&quot;</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;</div>
<div class="line"><a name="l00008"></a><span class="lineno"><a class="line" href="protocol_8h.html#aa017bbd7175269e542630580f737c3cc">    8</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="proto__maom_8c.html#aa017bbd7175269e542630580f737c3cc">maom_get</a> (<span class="keywordtype">int</span> socket_descriptor)</div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;{</div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;  <span class="comment">//first, the server needs to know the filename</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;  <span class="comment">//read first chunk of bytes and determine the prime number</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;  <span class="comment">//send the prime number to the client</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;  <span class="comment">//choose encoding exponent</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;  <span class="comment">//calculate inverse</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;  <span class="comment">//start encoding/sending/receiving/decoding/sending cycle</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;}</div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;</div>
<div class="line"><a name="l00018"></a><span class="lineno"><a class="line" href="protocol_8h.html#ad46a83933764d43960bacaf3792fa277">   18</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="proto__maom_8c.html#ad46a83933764d43960bacaf3792fa277">maom_put</a> (<span class="keywordtype">int</span> socket_descriptor)</div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;{</div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;  <span class="comment">//first, the server needs to know the prime number to be used</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;  <span class="comment">//choose encoding exponent</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;  <span class="comment">//calculate inverse</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;  <span class="comment">//start receiving/encoding/sending/receiving/decoding cycle</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;}</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div>
<div class="line"><a name="l00026"></a><span class="lineno"><a class="line" href="protocol_8h.html#a42a5e494db0d8577b4169ffad038f446">   26</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="proto__maom_8c.html#a42a5e494db0d8577b4169ffad038f446">client_maom_get</a> (<span class="keywordtype">int</span> socket_descriptor, <span class="keyword">const</span> <span class="keywordtype">char</span> * filename)</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;{</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;}</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div>
<div class="line"><a name="l00030"></a><span class="lineno"><a class="line" href="protocol_8h.html#a1f7846943c980060eb26757c155c8c75">   30</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="proto__maom_8c.html#a1f7846943c980060eb26757c155c8c75">client_maom_put</a> (<span class="keywordtype">int</span> socket_descriptor, <span class="keyword">const</span> <span class="keywordtype">char</span> * filename)</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;{</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;}</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;</div>
<div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="proto__maom_8c.html#a674e54e66939d146043e527d8ffdb2eb">   37</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="proto__maom_8c.html#a674e54e66939d146043e527d8ffdb2eb">send_number</a>(<span class="keywordtype">int</span> socket_descriptor</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;              , mpz_t number</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;              , <span class="keyword">const</span> <span class="keywordtype">char</span> * mode)</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;{</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;  <span class="keyword">const</span> FUNCNAME = <span class="stringliteral">&quot;send_number()&quot;</span>;</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;  <span class="keywordtype">char</span> * buffer, numlen;</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;  <span class="keywordtype">size_t</span> bytes;</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;  <span class="comment">//convert the big number into a stream of bytes</span></div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;  <a class="code" href="bigint_8c.html#a0e8bbdc21a84c26184b99cd801dddecc">mpz_2_bytes</a> (buffer, number, &amp;bytes);</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;  <span class="comment">//the number of significant bytes we are going to transmit</span></div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;  <span class="comment">//must be expressed in a fixed-length string </span></div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;  <span class="keywordflow">if</span>(<a class="code" href="utils_8c.html#ade391357b11fa32f4d53c267daf009e8">zero_pad</a>(numlen, bytes, <a class="code" href="proto__maom_8h.html#a243ffd155f48f81682c2c6364e2464ed">INTEGER_SIZE_LEN</a>) != <a class="code" href="proto__maom_8h.html#a243ffd155f48f81682c2c6364e2464ed">INTEGER_SIZE_LEN</a>)</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    {</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;      <a class="code" href="protocol_8c.html#ab317a4b5fae174c50e993b8498c682e5">proto_goodbye_failure</a>(socket_descriptor, <a class="code" href="protocol_8h.html#aef113f145ad544ae7347e10a6ca317eb">PROTOCOL_ERROR</a>);</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;      <a class="code" href="proto__maom_8h.html#ac900f7f4cbb8ade051915b56180eb89d">THROW</a>(FUNCNAME, <span class="stringliteral">&quot;Illegal number of zero-padded bytes\n&quot;</span>);</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;    }</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;  <span class="comment">//now we try and tell the other terminal the protocol code</span></div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="protocol_8c.html#a3f6e333d7821f4dc1a2105414a73e259">proto_send_command</a>(socket_descriptor, mode) &lt; 0)</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    <a class="code" href="proto__maom_8h.html#ac900f7f4cbb8ade051915b56180eb89d">THROW</a>(FUNCNAME, <span class="stringliteral">&quot;Unable to send protocol code\n&quot;</span>);</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;  <span class="comment">//the other end should give an OK</span></div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="protocol_8c.html#adb7d6e26bb22986630d83d48399e8d1f">proto_expect_command</a>(socket_descriptor, <a class="code" href="protocol_8h.html#aba51915c87d64af47fb1cc59348961c9">OK</a>) != 0)</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;    {</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;      <a class="code" href="protocol_8c.html#ab317a4b5fae174c50e993b8498c682e5">proto_goodbye_failure</a>(socket_descriptor, <a class="code" href="protocol_8h.html#aef113f145ad544ae7347e10a6ca317eb">PROTOCOL_ERROR</a>);</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;      <a class="code" href="proto__maom_8h.html#ac900f7f4cbb8ade051915b56180eb89d">THROW</a>(FUNCNAME, <span class="stringliteral">&quot;Unable to send protocol code\n&quot;</span>);</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;    }</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    </div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;  <span class="comment">//now we tell the oher end that a fixed size string</span></div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;  <span class="comment">//containing the length of the number to be transmitted</span></div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;  <span class="comment">//is about to be sent</span></div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="protocol_8c.html#a3f6e333d7821f4dc1a2105414a73e259">proto_send_command</a>(socket_descriptor, <a class="code" href="proto__maom_8h.html#aba06df1ffcca30cdc26912bd5521b40d">INTEGER_SIZE</a>) &lt; 0)</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    <a class="code" href="proto__maom_8h.html#ac900f7f4cbb8ade051915b56180eb89d">THROW</a>(FUNCNAME, <span class="stringliteral">&quot;Unable to send protocol code\n&quot;</span>);</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;  <span class="comment">//the other end should give an OK</span></div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="protocol_8c.html#adb7d6e26bb22986630d83d48399e8d1f">proto_expect_command</a>(socket_descriptor, <a class="code" href="protocol_8h.html#aba51915c87d64af47fb1cc59348961c9">OK</a>) != 0)</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    {</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;      <a class="code" href="protocol_8c.html#ab317a4b5fae174c50e993b8498c682e5">proto_goodbye_failure</a>(socket_descriptor, <a class="code" href="protocol_8h.html#aef113f145ad544ae7347e10a6ca317eb">PROTOCOL_ERROR</a>);</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;      <a class="code" href="proto__maom_8h.html#ac900f7f4cbb8ade051915b56180eb89d">THROW</a>(FUNCNAME, <span class="stringliteral">&quot;Unable to send protocol code\n&quot;</span>);</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    }</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;  <span class="comment">//send the length</span></div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;  <span class="keywordflow">if</span> (write(socket_descriptor, numlen, <a class="code" href="proto__maom_8h.html#a243ffd155f48f81682c2c6364e2464ed">INTEGER_SIZE_LEN</a>) &lt; 0)</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    {</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;      <a class="code" href="protocol_8c.html#ab317a4b5fae174c50e993b8498c682e5">proto_goodbye_failure</a>(socket_descriptor, <a class="code" href="protocol_8h.html#acb00992efca56626cdf0907e5edb5b51">KO</a>);</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;      <a class="code" href="proto__maom_8h.html#ac900f7f4cbb8ade051915b56180eb89d">THROW</a>(FUNCNAME, <span class="stringliteral">&quot;Unable to send integer size\n&quot;</span>);</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    }</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;  <span class="comment">//the other end should give an OK</span></div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="protocol_8c.html#adb7d6e26bb22986630d83d48399e8d1f">proto_expect_command</a>(socket_descriptor, <a class="code" href="protocol_8h.html#aba51915c87d64af47fb1cc59348961c9">OK</a>) != 0)</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    {</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;      <a class="code" href="protocol_8c.html#ab317a4b5fae174c50e993b8498c682e5">proto_goodbye_failure</a>(socket_descriptor, <a class="code" href="protocol_8h.html#aef113f145ad544ae7347e10a6ca317eb">PROTOCOL_ERROR</a>);</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;      <a class="code" href="proto__maom_8h.html#ac900f7f4cbb8ade051915b56180eb89d">THROW</a>(FUNCNAME, <span class="stringliteral">&quot;Expecting OK from other end\n&quot;</span>);</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    }</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;  <span class="comment">//now we write the actual bytes representing the integer to be sent</span></div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;  <span class="keywordflow">if</span> (write(socket_descriptor, buffer, bytes) &lt; 0)</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    {</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;      <a class="code" href="protocol_8c.html#ab317a4b5fae174c50e993b8498c682e5">proto_goodbye_failure</a>(socket_descriptor, <a class="code" href="protocol_8h.html#acb00992efca56626cdf0907e5edb5b51">KO</a>);</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;      <a class="code" href="proto__maom_8h.html#ac900f7f4cbb8ade051915b56180eb89d">THROW</a>(FUNCNAME, <span class="stringliteral">&quot;Unable to send number\n&quot;</span>);</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    } </div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;  <span class="keywordflow">return</span>(EXIT_SUCCESS);</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;}</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;</div>
<div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="proto__maom_8c.html#a8ee6ea340fa80f23a8a9c74fce5e2675">  101</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="proto__maom_8c.html#a8ee6ea340fa80f23a8a9c74fce5e2675">expect_number</a>(<span class="keywordtype">int</span> socket_descriptor</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;                , mpz_t * number</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;                , <span class="keyword">const</span> <span class="keywordtype">char</span> * mode)</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;{</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;  <span class="keywordtype">int</span> nread, numlen;</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;  <span class="keywordtype">char</span> buffer[<a class="code" href="server_8c.html#aeca034f67218340ecb2261a22c2f3dcd">BUFSIZE</a>];</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;  <span class="comment">//we should first of all receive the protocol code</span></div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="protocol_8c.html#adb7d6e26bb22986630d83d48399e8d1f">proto_expect_command</a>(socket_descriptor, mode) != 0)</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;    {</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;      <a class="code" href="protocol_8c.html#ab317a4b5fae174c50e993b8498c682e5">proto_goodbye_failure</a>(socket_descriptor, <a class="code" href="protocol_8h.html#aef113f145ad544ae7347e10a6ca317eb">PROTOCOL_ERROR</a>);</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;      <a class="code" href="proto__maom_8h.html#ac900f7f4cbb8ade051915b56180eb89d">THROW</a>(FUNCNAME, <span class="stringliteral">&quot;Unexpected protocol code or read error\n&quot;</span>);</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;    }</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;  <span class="comment">//send OK</span></div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="protocol_8c.html#a3f6e333d7821f4dc1a2105414a73e259">proto_send_command</a>(socket_descriptor, <a class="code" href="protocol_8h.html#aba51915c87d64af47fb1cc59348961c9">OK</a>) &lt; 0)</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;    <a class="code" href="proto__maom_8h.html#ac900f7f4cbb8ade051915b56180eb89d">THROW</a>(FUNCNAME, <span class="stringliteral">&quot;Cannot write on socket descriptor\n&quot;</span>);</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;  <span class="comment">//now we expect to receive an INTEGER_SIZE instruction</span></div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="protocol_8c.html#adb7d6e26bb22986630d83d48399e8d1f">proto_expect_command</a>(socket_descriptor, <a class="code" href="proto__maom_8h.html#aba06df1ffcca30cdc26912bd5521b40d">INTEGER_SIZE</a>) != 0)</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;    {</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;      <a class="code" href="protocol_8c.html#ab317a4b5fae174c50e993b8498c682e5">proto_goodbye_failure</a>(socket_descriptor, <a class="code" href="protocol_8h.html#aef113f145ad544ae7347e10a6ca317eb">PROTOCOL_ERROR</a>);</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;      <a class="code" href="proto__maom_8h.html#ac900f7f4cbb8ade051915b56180eb89d">THROW</a>(FUNCNAME, <span class="stringliteral">&quot;Unexpected protocol code or read error\n&quot;</span>);</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;    }</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;  <span class="comment">//send OK</span></div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="protocol_8c.html#a3f6e333d7821f4dc1a2105414a73e259">proto_send_command</a>(socket_descriptor, <a class="code" href="protocol_8h.html#aba51915c87d64af47fb1cc59348961c9">OK</a>) &lt; 0)</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;    <a class="code" href="proto__maom_8h.html#ac900f7f4cbb8ade051915b56180eb89d">THROW</a>(FUNCNAME, <span class="stringliteral">&quot;Cannot write on socket descriptor\n&quot;</span>);</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;  <span class="comment">//the other end should now give us the length</span></div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;  <span class="keywordflow">if</span> ((nread = read(socket_descriptor, buffer, <a class="code" href="proto__maom_8h.html#a243ffd155f48f81682c2c6364e2464ed">INTEGER_SIZE_LEN</a>)) &lt; 0)</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    {</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;      <a class="code" href="protocol_8c.html#ab317a4b5fae174c50e993b8498c682e5">proto_goodbye_failure</a>(socket_descriptor, <a class="code" href="protocol_8h.html#acb00992efca56626cdf0907e5edb5b51">KO</a>);</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;      <a class="code" href="proto__maom_8h.html#ac900f7f4cbb8ade051915b56180eb89d">THROW</a>(FUNCNAME, <span class="stringliteral">&quot;Unable to read integer size\n&quot;</span>);</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;    }</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;  <span class="comment">//send OK</span></div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="protocol_8c.html#a3f6e333d7821f4dc1a2105414a73e259">proto_send_command</a>(socket_descriptor, <a class="code" href="protocol_8h.html#aba51915c87d64af47fb1cc59348961c9">OK</a>) &lt; 0)</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;    <a class="code" href="proto__maom_8h.html#ac900f7f4cbb8ade051915b56180eb89d">THROW</a>(FUNCNAME, <span class="stringliteral">&quot;Cannot write on socket descriptor\n&quot;</span>);</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;  buffer[<a class="code" href="proto__maom_8h.html#a243ffd155f48f81682c2c6364e2464ed">INTEGER_SIZE_LEN</a>] = <span class="charliteral">&#39;\0&#39;</span>;</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;  numlen = atoi(buffer);</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;  <span class="comment">//finally we should receive the actual bytes</span></div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;  <span class="keywordflow">if</span> ((nread = read(socket_descriptor, buffer, numlen)) &lt; 0)</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    {</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;      <a class="code" href="protocol_8c.html#ab317a4b5fae174c50e993b8498c682e5">proto_goodbye_failure</a>(socket_descriptor, <a class="code" href="protocol_8h.html#acb00992efca56626cdf0907e5edb5b51">KO</a>);</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;      <a class="code" href="proto__maom_8h.html#ac900f7f4cbb8ade051915b56180eb89d">THROW</a>(FUNCNAME, <span class="stringliteral">&quot;Unable to read number\n&quot;</span>);</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    }</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;  <a class="code" href="bigint_8c.html#af05770165fb84c71aa4949563713724d">bytes_2_mpz</a>(number, buffer);</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;  <span class="keywordflow">return</span>(EXIT_SUCCESS);</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;}</div>
<div class="ttc" id="protocol_8c_html_a3f6e333d7821f4dc1a2105414a73e259"><div class="ttname"><a href="protocol_8c.html#a3f6e333d7821f4dc1a2105414a73e259">proto_send_command</a></div><div class="ttdeci">int proto_send_command(int socket_descriptor, const char *command)</div><div class="ttdef"><b>Definition:</b> <a href="protocol_8c_source.html#l00124">protocol.c:124</a></div></div>
<div class="ttc" id="utils_8c_html_ade391357b11fa32f4d53c267daf009e8"><div class="ttname"><a href="utils_8c.html#ade391357b11fa32f4d53c267daf009e8">zero_pad</a></div><div class="ttdeci">int zero_pad(char *buffer, unsigned long int number, int len)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8c_source.html#l00078">utils.c:78</a></div></div>
<div class="ttc" id="proto__maom_8h_html_aba06df1ffcca30cdc26912bd5521b40d"><div class="ttname"><a href="proto__maom_8h.html#aba06df1ffcca30cdc26912bd5521b40d">INTEGER_SIZE</a></div><div class="ttdeci">#define INTEGER_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="proto__maom_8h_source.html#l00058">proto_maom.h:58</a></div></div>
<div class="ttc" id="protocol_8c_html_ab317a4b5fae174c50e993b8498c682e5"><div class="ttname"><a href="protocol_8c.html#ab317a4b5fae174c50e993b8498c682e5">proto_goodbye_failure</a></div><div class="ttdeci">void proto_goodbye_failure(int socket_descriptor, const char *command)</div><div class="ttdef"><b>Definition:</b> <a href="protocol_8c_source.html#l00139">protocol.c:139</a></div></div>
<div class="ttc" id="proto__maom_8c_html_a42a5e494db0d8577b4169ffad038f446"><div class="ttname"><a href="proto__maom_8c.html#a42a5e494db0d8577b4169ffad038f446">client_maom_get</a></div><div class="ttdeci">int client_maom_get(int socket_descriptor, const char *filename)</div><div class="ttdef"><b>Definition:</b> <a href="proto__maom_8c_source.html#l00026">proto_maom.c:26</a></div></div>
<div class="ttc" id="protocol_8c_html_adb7d6e26bb22986630d83d48399e8d1f"><div class="ttname"><a href="protocol_8c.html#adb7d6e26bb22986630d83d48399e8d1f">proto_expect_command</a></div><div class="ttdeci">int proto_expect_command(int socket_descriptor, const char *command)</div><div class="ttdef"><b>Definition:</b> <a href="protocol_8c_source.html#l00082">protocol.c:82</a></div></div>
<div class="ttc" id="proto__maom_8h_html_a243ffd155f48f81682c2c6364e2464ed"><div class="ttname"><a href="proto__maom_8h.html#a243ffd155f48f81682c2c6364e2464ed">INTEGER_SIZE_LEN</a></div><div class="ttdeci">#define INTEGER_SIZE_LEN</div><div class="ttdef"><b>Definition:</b> <a href="proto__maom_8h_source.html#l00060">proto_maom.h:60</a></div></div>
<div class="ttc" id="proto__maom_8h_html"><div class="ttname"><a href="proto__maom_8h.html">proto_maom.h</a></div></div>
<div class="ttc" id="protocol_8h_html_aef113f145ad544ae7347e10a6ca317eb"><div class="ttname"><a href="protocol_8h.html#aef113f145ad544ae7347e10a6ca317eb">PROTOCOL_ERROR</a></div><div class="ttdeci">#define PROTOCOL_ERROR</div><div class="ttdef"><b>Definition:</b> <a href="protocol_8h_source.html#l00103">protocol.h:103</a></div></div>
<div class="ttc" id="bigint_8c_html_af05770165fb84c71aa4949563713724d"><div class="ttname"><a href="bigint_8c.html#af05770165fb84c71aa4949563713724d">bytes_2_mpz</a></div><div class="ttdeci">int bytes_2_mpz(mpz_t number, char *buffer, size_t count)</div><div class="ttdoc">custom edition of bytes_to_mpz </div><div class="ttdef"><b>Definition:</b> <a href="bigint_8c_source.html#l00114">bigint.c:114</a></div></div>
<div class="ttc" id="proto__maom_8c_html_aa017bbd7175269e542630580f737c3cc"><div class="ttname"><a href="proto__maom_8c.html#aa017bbd7175269e542630580f737c3cc">maom_get</a></div><div class="ttdeci">int maom_get(int socket_descriptor)</div><div class="ttdef"><b>Definition:</b> <a href="proto__maom_8c_source.html#l00008">proto_maom.c:8</a></div></div>
<div class="ttc" id="proto__maom_8h_html_ac900f7f4cbb8ade051915b56180eb89d"><div class="ttname"><a href="proto__maom_8h.html#ac900f7f4cbb8ade051915b56180eb89d">THROW</a></div><div class="ttdeci">#define THROW</div><div class="ttdef"><b>Definition:</b> <a href="proto__maom_8h_source.html#l00064">proto_maom.h:64</a></div></div>
<div class="ttc" id="proto__maom_8c_html_a674e54e66939d146043e527d8ffdb2eb"><div class="ttname"><a href="proto__maom_8c.html#a674e54e66939d146043e527d8ffdb2eb">send_number</a></div><div class="ttdeci">int send_number(int socket_descriptor, mpz_t number, const char *mode)</div><div class="ttdef"><b>Definition:</b> <a href="proto__maom_8c_source.html#l00037">proto_maom.c:37</a></div></div>
<div class="ttc" id="proto__maom_8c_html_ad46a83933764d43960bacaf3792fa277"><div class="ttname"><a href="proto__maom_8c.html#ad46a83933764d43960bacaf3792fa277">maom_put</a></div><div class="ttdeci">int maom_put(int socket_descriptor)</div><div class="ttdef"><b>Definition:</b> <a href="proto__maom_8c_source.html#l00018">proto_maom.c:18</a></div></div>
<div class="ttc" id="server_8c_html_aeca034f67218340ecb2261a22c2f3dcd"><div class="ttname"><a href="server_8c.html#aeca034f67218340ecb2261a22c2f3dcd">BUFSIZE</a></div><div class="ttdeci">#define BUFSIZE</div><div class="ttdef"><b>Definition:</b> <a href="server_8c_source.html#l00012">server.c:12</a></div></div>
<div class="ttc" id="protocol_8h_html_aba51915c87d64af47fb1cc59348961c9"><div class="ttname"><a href="protocol_8h.html#aba51915c87d64af47fb1cc59348961c9">OK</a></div><div class="ttdeci">#define OK</div><div class="ttdef"><b>Definition:</b> <a href="protocol_8h_source.html#l00091">protocol.h:91</a></div></div>
<div class="ttc" id="bigint_8c_html_a0e8bbdc21a84c26184b99cd801dddecc"><div class="ttname"><a href="bigint_8c.html#a0e8bbdc21a84c26184b99cd801dddecc">mpz_2_bytes</a></div><div class="ttdeci">int mpz_2_bytes(char *buffer, mpz_t number, size_t *count)</div><div class="ttdoc">custom edition of mpz_to_bytes </div><div class="ttdef"><b>Definition:</b> <a href="bigint_8c_source.html#l00088">bigint.c:88</a></div></div>
<div class="ttc" id="protocol_8h_html_acb00992efca56626cdf0907e5edb5b51"><div class="ttname"><a href="protocol_8h.html#acb00992efca56626cdf0907e5edb5b51">KO</a></div><div class="ttdeci">#define KO</div><div class="ttdef"><b>Definition:</b> <a href="protocol_8h_source.html#l00102">protocol.h:102</a></div></div>
<div class="ttc" id="proto__maom_8c_html_a8ee6ea340fa80f23a8a9c74fce5e2675"><div class="ttname"><a href="proto__maom_8c.html#a8ee6ea340fa80f23a8a9c74fce5e2675">expect_number</a></div><div class="ttdeci">int expect_number(int socket_descriptor, mpz_t *number, const char *mode)</div><div class="ttdef"><b>Definition:</b> <a href="proto__maom_8c_source.html#l00101">proto_maom.c:101</a></div></div>
<div class="ttc" id="proto__maom_8c_html_a1f7846943c980060eb26757c155c8c75"><div class="ttname"><a href="proto__maom_8c.html#a1f7846943c980060eb26757c155c8c75">client_maom_put</a></div><div class="ttdeci">int client_maom_put(int socket_descriptor, const char *filename)</div><div class="ttdef"><b>Definition:</b> <a href="proto__maom_8c_source.html#l00030">proto_maom.c:30</a></div></div>
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